3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = '0'; var_dump(empty($foo)); var_dump(!isset($foo) || !$foo);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0090.00618.18
8.3.50.0050.01016.41
8.3.40.0120.00318.45
8.3.30.0090.00618.56
8.3.20.0060.00318.52
8.3.10.0090.00018.44
8.3.00.0060.00319.02
8.2.180.0060.01216.38
8.2.170.0110.00422.96
8.2.160.0130.00318.96
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00419.77
8.2.110.0060.00320.97
8.2.100.0000.01217.91
8.2.90.0040.00417.91
8.2.80.0040.00418.03
8.2.70.0080.00017.38
8.2.60.0060.00317.63
8.2.50.0030.00517.50
8.2.40.0000.00917.62
8.2.30.0030.00617.59
8.2.20.0060.00517.43
8.2.10.0040.00417.70
8.2.00.0070.00317.54
8.1.280.0110.00425.92
8.1.270.0050.00223.99
8.1.260.0150.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00423.89
8.1.230.0060.00622.75
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0060.00317.22
8.1.190.0000.00917.13
8.1.180.0030.00618.10
8.1.170.0040.00418.63
8.1.160.0000.00918.58
8.1.150.0070.00018.62
8.1.140.0030.00517.42
8.1.130.0000.00717.36
8.1.120.0050.00217.48
8.1.110.0000.00717.39
8.1.100.0050.00317.43
8.1.90.0030.00317.41
8.1.80.0030.00517.43
8.1.70.0030.00317.46
8.1.60.0000.00817.47
8.1.50.0070.00017.56
8.1.40.0040.00417.52
8.1.30.0000.00817.59
8.1.20.0030.00717.66
8.1.10.0040.00417.43
8.1.00.0070.00017.23
8.0.300.0080.00019.98
8.0.290.0060.00316.75
8.0.280.0030.00517.98
8.0.270.0070.00017.24
8.0.260.0030.00516.80
8.0.250.0000.01116.93
8.0.240.0040.00416.81
8.0.230.0000.00616.84
8.0.220.0000.00716.87
8.0.210.0000.00716.86
8.0.200.0030.00516.90
8.0.190.0030.00516.84
8.0.180.0040.00416.78
8.0.170.0060.00316.88
8.0.160.0040.00416.92
8.0.150.0060.00316.84
8.0.140.0040.00416.82
8.0.130.0000.00513.30
8.0.120.0060.00316.77
8.0.110.0000.00816.72
8.0.100.0050.00316.90
8.0.90.0040.00416.82
8.0.80.0080.00816.93
8.0.70.0080.00016.93
8.0.60.0050.00416.71
8.0.50.0060.00316.90
8.0.30.0160.00017.11
8.0.20.0150.00816.91
8.0.10.0030.00316.89
8.0.00.0150.00416.72
7.4.330.0000.00713.04
7.4.320.0000.00616.63
7.4.300.0000.00616.39
7.4.290.0070.00416.57
7.4.280.0000.00816.61
7.4.270.0040.00416.42
7.4.260.0030.00313.16
7.4.250.0030.00616.50
7.4.240.0070.00016.42
7.4.230.0040.00416.43
7.4.220.0210.01016.59
7.4.210.0070.01116.69
7.4.200.0070.00016.52
7.4.190.0040.00416.68
7.4.160.0080.00816.51
7.4.150.0140.00416.54
7.4.140.0190.00617.86
7.4.130.0090.00916.54
7.4.120.0110.01416.48
7.4.110.0100.00916.46
7.4.100.0110.00716.32
7.4.90.0100.00716.48
7.4.80.0140.00319.39
7.4.70.0030.01316.22
7.4.60.0130.00316.44
7.4.50.0000.00516.39
7.4.40.0120.00616.29
7.4.30.0090.00916.56
7.4.00.0030.01314.70
7.3.330.0080.00013.13
7.3.320.0030.00312.93
7.3.310.0070.00016.10
7.3.300.0070.00016.05
7.3.290.0070.00716.19
7.3.280.0130.00516.23
7.3.270.0100.00716.55
7.3.260.0060.01616.17
7.3.240.0060.01116.28
7.3.230.0060.01216.52
7.3.210.0120.00416.14
7.3.200.0090.00616.28
7.3.190.0100.00616.40
7.3.180.0120.00916.22
7.3.170.0060.01116.43
7.3.160.0090.00816.19
7.3.120.0070.00314.83
7.2.330.0080.01116.59
7.2.320.0070.01016.54
7.2.310.0080.01016.44
7.2.300.0070.01016.25
7.2.290.0070.01016.53
7.2.60.0000.01416.75
7.2.00.0060.00619.35
7.1.200.0000.01215.74
7.1.100.0060.00618.15
7.1.70.0000.01016.80
7.1.60.0170.00719.25
7.1.50.0040.00716.93
7.1.00.0070.02722.32
7.0.200.0000.00816.81
7.0.140.0000.07721.99
7.0.120.0000.07322.03
7.0.60.0070.07719.88
7.0.50.0070.08717.86
7.0.40.0030.09017.76
7.0.30.0070.04317.76
7.0.20.0100.08317.74
7.0.10.0100.08017.68
7.0.00.0070.04017.78
5.6.280.0030.07320.86
5.6.210.0100.07720.46
5.6.200.0070.08718.19
5.6.190.0100.08318.12
5.6.180.0030.04318.18
5.6.170.0100.03718.09
5.6.160.0070.08018.09
5.6.150.0030.06018.20
5.6.140.0170.07018.11
5.6.130.0030.07718.17
5.6.120.0070.04718.09
5.6.110.0030.04318.08
5.6.100.0030.04018.11
5.6.90.0000.04318.10
5.6.80.0070.05717.53
5.6.70.0000.04317.60
5.6.60.0030.03717.52
5.6.50.0030.04717.53
5.6.40.0000.04017.52
5.6.30.0100.03017.55
5.6.20.0000.04017.57
5.6.10.0030.03717.52
5.6.00.0000.04017.53
5.5.350.0270.07720.40
5.5.340.0030.06017.95
5.5.330.0000.05717.92
5.5.320.0030.04317.96
5.5.310.0030.05717.95
5.5.300.0200.06318.00
5.5.290.0170.05318.01
5.5.280.0070.05017.95
5.5.270.0000.04317.91
5.5.260.0000.04317.94
5.5.250.0000.04717.72
5.5.240.0030.03717.29
5.5.230.0070.03317.29
5.5.220.0030.04717.36
5.5.210.0000.04017.29
5.5.200.0030.04017.23
5.5.190.0000.04017.39
5.5.180.0000.04017.32
5.5.160.0030.04317.25
5.5.150.0000.04017.37
5.5.140.0000.04017.32
5.5.130.0070.04317.27
5.5.120.0070.03717.31
5.5.110.0000.04017.25
5.5.100.0000.04017.17
5.5.90.0000.03717.23
5.5.80.0100.03017.14
5.5.70.0000.04017.19
5.5.60.0000.07017.17
5.5.50.0100.07717.13
5.5.40.0070.06017.20
5.5.30.0030.07717.21
5.5.20.0100.04717.21
5.5.10.0070.08017.15
5.5.00.0100.04717.19
5.4.450.0000.08719.33
5.4.440.0100.06319.35
5.4.430.0000.04019.30
5.4.420.0070.04019.41
5.4.410.0000.04019.08
5.4.400.0100.03019.07
5.4.390.0030.03719.09
5.4.380.0030.03718.95
5.4.370.0000.04019.20
5.4.360.0030.03718.98
5.4.350.0030.03718.99
5.4.340.0030.03719.13
5.4.320.0030.03718.95
5.4.310.0070.03318.98
5.4.300.0030.05018.98
5.4.290.0030.03719.14
5.4.280.0030.03718.98
5.4.270.0030.03718.96
5.4.260.0000.04318.98
5.4.250.0100.03018.81
5.4.240.0000.04019.12
5.4.230.0030.04018.97
5.4.220.0070.06319.02
5.4.210.0070.05318.94
5.4.200.0000.06318.98
5.4.190.0070.05019.19
5.4.180.0070.04319.00
5.4.170.0100.07719.01
5.4.160.0070.08018.97
5.4.150.0170.06718.96
5.4.140.0000.07316.20
5.4.130.0070.04016.32
5.4.120.0070.07716.18
5.4.110.0030.04716.25
5.4.100.0030.04716.25
5.4.90.0070.06716.42
5.4.80.0070.05716.25
5.4.70.0100.04016.26
5.4.60.0000.04016.34
5.4.50.0070.07016.22
5.4.40.0030.07716.27
5.4.30.0030.03716.30
5.4.20.0130.06316.24
5.4.10.0030.05716.23
5.4.00.0030.05015.76
5.3.290.0000.04014.59
5.3.280.0030.03714.38
5.3.270.0130.06714.60
5.3.260.0030.07014.54
5.3.250.0100.04714.52
5.3.240.0070.04014.43
5.3.230.0200.04714.55
5.3.220.0100.06714.49
5.3.210.0030.07014.42
5.3.200.0200.06014.53
5.3.190.0130.06314.48
5.3.180.0000.04714.47
5.3.170.0100.06014.50
5.3.160.0000.04014.53
5.3.150.0070.08014.41
5.3.140.0030.04314.62
5.3.130.0100.06314.48
5.3.120.0030.04014.50
5.3.110.0070.07314.52
5.3.100.0100.06013.89
5.3.90.0070.04013.98
5.3.80.0030.04713.77
5.3.70.0070.04013.96
5.3.60.0030.05013.98
5.3.50.0030.07013.93
5.3.40.0070.04013.72
5.3.30.0100.03013.87
5.3.20.0030.05713.61
5.3.10.0030.04013.58
5.3.00.0030.07313.70
5.2.170.0070.02711.12
5.2.160.0000.04310.97
5.2.150.0000.03311.04
5.2.140.0000.03311.13
5.2.130.0030.03011.08
5.2.120.0030.05711.07
5.2.110.0000.03311.04
5.2.100.0070.05310.91
5.2.90.0030.03311.05
5.2.80.0000.03311.05
5.2.70.0030.03011.07
5.2.60.0030.03010.97
5.2.50.0000.06311.16
5.2.40.0070.03711.02
5.2.30.0000.04710.90
5.2.20.0030.03710.80
5.2.10.0000.03310.90
5.2.00.0000.03310.86
5.1.60.0030.02710.00
5.1.50.0030.03710.00
5.1.40.0030.0579.90
5.1.30.0000.02710.29
5.1.20.0030.03010.39
5.1.10.0030.05310.12
5.1.00.0070.05710.21
5.0.50.0030.0208.59
5.0.40.0070.0408.43
5.0.30.0030.0638.16
5.0.20.0030.0208.27
5.0.10.0000.0508.20
5.0.00.0070.0538.11
4.4.90.0000.0378.03
4.4.80.0030.0138.03
4.4.70.0030.0138.03
4.4.60.0000.0378.03
4.4.50.0030.0178.03
4.4.40.0070.0508.03
4.4.30.0000.0308.03
4.4.20.0030.0138.03
4.4.10.0030.0338.03
4.4.00.0030.0238.03
4.3.110.0030.0338.03
4.3.100.0070.0308.03
4.3.90.0070.0278.03
4.3.80.0000.0538.03
4.3.70.0070.0278.03
4.3.60.0000.0308.03
4.3.50.0070.0238.03
4.3.40.0000.0338.03
4.3.30.0030.0238.03
4.3.20.0000.0238.03
4.3.10.0000.0178.03
4.3.00.0000.0338.03

preferences:
38.18 ms | 401 KiB | 5 Q